WO2017113512A1 - 定子冲片、定子组件及外转子电机 - Google Patents
定子冲片、定子组件及外转子电机 Download PDFInfo
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- WO2017113512A1 WO2017113512A1 PCT/CN2016/075899 CN2016075899W WO2017113512A1 WO 2017113512 A1 WO2017113512 A1 WO 2017113512A1 CN 2016075899 W CN2016075899 W CN 2016075899W WO 2017113512 A1 WO2017113512 A1 WO 2017113512A1
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- groove
- working
- tooth
- stator
- common
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
Definitions
- the invention relates to a stator punching piece, a stator assembly and an outer rotor motor, and belongs to the technical field of motors.
- Current motors such as plastic outer rotor motors, include a molded stator and a motor rotor.
- the molded stator includes a stator core laminated by a plurality of stator punches and a main coil winding and a secondary coil winding wound around the stator core.
- each of the ruled grooves has the same size and shape and is uniformly distributed on the outer side of the circumference.
- the structure is simple and easy to mold, the winding wire is inconvenient and the winding ends are high and high, resulting in high consumption of motor materials and high cost.
- the welt grooves are located on the outer side, the teeth are narrower, resulting in higher magnetic density of the stator teeth, thereby affecting the performance and efficiency of the motor.
- a stator punching piece comprising a punching body having a central hole, the punching body comprising an annular yoke and a plurality of teeth extending outwardly from an outer edge of the annular yoke, the punching body being provided with a plurality of a slot group and a plurality of second slot groups, wherein the first slot group and the second slot group are alternately arranged circumferentially on the outer edge of the punching piece, and the first slot group is along the punching piece a depth in a radial direction of the body is deeper than a depth of the second groove group in a radial direction of the punch body, the first groove set including a first common welt groove in the middle and respectively located in the first common rule line a first left welt groove and a first right welt groove on both sides of the slot, the second slot set includes a second common welt slot in the middle and a second left embedding on each side of the second common welt slot Trunking and second right welt.
- the plurality of teeth include a plurality of first tooth portions, a second tooth portion and a third tooth portion, the first tooth portion, the second tooth portion and the third tooth portion being juxtaposed together to form one tooth unit, and the plurality of tooth units are circumferentially Distribution, where Forming the first left ruled groove between the first tooth portion and the second tooth portion, forming the first common wire groove between the second tooth portion and the third tooth portion, and the third tooth portion and the third tooth portion
- the first right welt groove is formed between a tooth portion.
- the first tooth portion includes a common root portion and left, right, right, and right teeth extending outward from the common root, wherein the first portion is formed between the left and left straight teeth a second left ruled groove, the second common welt groove is formed between the left straight tooth and the right straight tooth, and the second right ruled groove is formed between the right straight tooth and the right curved tooth.
- the left straight tooth and the right straight tooth are symmetrically distributed along the radial center line of the common root portion, and the left and right curved teeth are also symmetrically distributed along the radial center line of the common root portion, and the second left weld groove is close to the slot.
- the notch of the second common welt groove is located at an intermediate position between the left straight tooth and the right straight tooth, and the notch of the second right wire groove is close to the right straight tooth.
- the width of the common root portion is greater than the width of the left straight or right straight teeth, and the width of the common root portion gradually increases outward in the radial direction of the punch body.
- the bottom of the groove of the second left ruled groove and the second right ruled groove is an arc formed by the center of the punch body.
- the second tooth portion and the third tooth portion are all spur-shaped, and the second tooth portion and the third tooth portion are symmetrically distributed along a radial center line of the first common welt groove, the first common wire groove
- the notch is located at an intermediate position between the second tooth portion and the third tooth portion.
- the first left inlaid groove and the bottom of the first right inlaid groove are arcs formed by a center of the center of the punching body.
- the number of the first slot group and the second slot group is four, wherein the first slot group is used for winding the secondary winding, and the second slot group is for winding the main winding.
- stator assembly including a stator core, an end insulation, a first working winding, and a second working winding, the end insulation being mounted on an end face of the stator core, the stator core being as described above
- the stator windings are stacked, the first working winding is wound around the first slot group, the second working winding is wound around the second slot group, and the first working winding comprises a plurality of groups distributed along the circumferential interval.
- each of the first working coils comprises a plurality of first working inner layer coils and a plurality of ⁇ a first working outer coil
- the first working inner layer coil is disposed in parallel with the inner and outer coils of the first working outer layer coil
- the two ends of the first working inner layer coil are respectively disposed adjacent to the adjacent two first groove groups a right wire groove and a first left wire groove
- the first working outer coil is respectively wound around the first common wire groove in the adjacent two first groove groups
- each second working coil The utility model comprises a plurality of second working inner layer coils and a plurality of second working outer layer coils, wherein the second working inner layer coil is arranged in parallel with
- the outer rotor motor comprises a rotating shaft, a plastic sealing stator and an outer rotor.
- the outer rotor is sleeved outside the plastic sealing stator.
- the rotating shaft is installed in the middle of the plastic sealing stator and is connected with the outer rotor.
- the plastic sealing stator comprises a stator core, an end insulation and a coil.
- the winding and the plastic body are respectively insulated on the end surface of the stator core, and the coil winding is wound around the end insulation, and the plastic sealing body integrally connects the stator core, the end insulation and the coil winding, and the stator core is It is laminated by a plurality of stator punches as described above.
- the invention has the following effects:
- the depth of the first groove group in the radial direction of the punch body is deeper than the depth of the second groove group in the radial direction of the punch body, thereby reducing and avoiding the main and auxiliary coil windings Overlap, facilitating winding and arranging, making the ends of the primary and secondary coil windings shorter and lower, reducing the amount of copper used in the primary and secondary coil windings, which is advantageous for reducing costs
- the first slot group and the The second slot group is disposed in plurality, and the first slot group and the second slot group are alternately arranged circumferentially on the outer edge of the punch body, and the first slot group includes the middle slot a first common welt slot and a first left welt slot and a first right welt slot respectively located on opposite sides of the first common welt slot, the second slot set including a second common welt slot in the middle and respectively The second left inlaid trough and the second right inlaid trough on both sides of the second common welt groove improve the punch structure by adding the first common inlay
- Figure 1 is a schematic view showing the structure of a stator punching piece in the embodiment
- FIG. 2 is a schematic structural view of a stator assembly in an embodiment
- FIG. 3 is a partial structural schematic view of a stator assembly in an embodiment
- Figure 4 is a perspective view of the outer rotor motor in the embodiment
- Fig. 5 is a schematic structural view of an outer rotor motor in the embodiment.
- Embodiment 1 As shown in FIG. 1 , this embodiment is a stator punching piece comprising a punching body 1 with a central hole, the punching body 1 including an annular yoke 10 and an outer edge of the annular yoke 10 a plurality of teeth extending upwardly, the punch body 1 being provided with a first groove group 2 and a second groove group 3, the first groove group 2 being deep in the radial direction of the punch body 1 a plurality of the first slot group 2 and the second slot group 3 are disposed at a depth of the second slot group 3 along a radial direction of the punch body 1, and the first slot group 2 And the second slot group 3 are alternately arranged circumferentially on the outer edge of the punching body 1 , the first slot group 2 includes a first common welt slot 21 in the middle and respectively located in the first common inlay a first left ruled groove 22 and a first right wire groove 23 on both sides of the wire groove 21, the second groove group 3 includes a second common wire groove 31 located in the
- the plurality of teeth include a plurality of first tooth portions 11, a second tooth portion 12 and a third tooth portion 13, and the first tooth portion 11, the second tooth portion 12 and the third tooth portion 13 are juxtaposed together to form a tooth unit.
- the plurality of tooth units are distributed in the circumferential direction, wherein the first left ruled groove 22 is formed between the first tooth portion 11 and the second tooth portion 12, and is formed between the second tooth portion 12 and the third tooth portion 13.
- the first common welt groove 21 forms the first right welt groove 23 between the third tooth portion 13 and the first tooth portion 11.
- the first tooth portion 11 includes a common root portion 111 and left curved teeth 112, left straight teeth 113, right straight teeth 114 and right curved teeth 115 extending outward from the common root portion 111, wherein the left curved teeth 112 and The second left ruled groove 32 is formed between the left straight teeth 113, and the second common wire groove 31 is formed between the left straight teeth 113 and the right straight teeth 114, on the right The second right ruled groove 33 is formed between the straight tooth 114 and the right curved tooth 115.
- the left straight tooth 113 and the right straight tooth 114 are symmetrically distributed along the radial center line A1 of the common root portion 111, and the left curved tooth 112 and the right curved tooth 115 are also symmetrically distributed along the radial center line A1 of the common root portion 111, the second left
- the slot of the wire groove 32 is close to the left straight tooth 113
- the notch of the second common wire groove 31 is located at an intermediate position between the left straight tooth 113 and the right straight tooth 114
- the groove of the second right rule groove 33 The mouth is close to the right straight tooth 114.
- the width of the common root portion 111 is larger than the width of the left straight tooth 113 or the right straight tooth 114, and the width of the common root portion 111 gradually becomes larger outward in the radial direction of the punch body 1.
- Both the second left inlaid groove 32 and the groove bottom 34 of the second right inlaid groove 33 are arcs formed by the center O of the punch body 1 as a center.
- the second tooth portion 12 and the third tooth portion 13 are each in a straight tooth shape, and the second tooth portion 12 and the third tooth portion 13 are symmetrically distributed along a radial center line A2 of the first common welt groove 21,
- the notch of a common welt groove 21 is located at an intermediate position between the second tooth portion 12 and the third tooth portion 13.
- the first left welt groove 22 and the groove bottom 24 of the first right welt groove 23 are each a circular arc formed by the center O of the punch body 1 as a center.
- the number of the first slot group 2 and the second slot group 3 is four, wherein the first slot group 2 is for winding the secondary winding, and the second slot group 3 is for winding the main winding.
- Embodiment 2 As shown in FIG. 1 , FIG. 2 and FIG. 3 , the embodiment is a stator assembly including a stator core, an end insulation, a first working winding 4 and a second working winding 5, The end insulation is mounted on the end face of the stator core, and the stator core is formed by stacking a plurality of stator punches 1 as described in the first embodiment, and the first working winding 4 is wound around the first slot group 2, The second working winding 5 is wound around the second slot group 3, and the first working winding 4 includes a plurality of sets of first working coils 41 distributed in the circumferential direction, and the plurality of sets of first working coils 41 are sequentially connected together.
- the second working winding 5 includes a plurality of sets of second working coils 51 distributed in the circumferential direction, and the plurality of sets of second working coils 51 are sequentially connected together, and the first working coil 41 and the second working coil 51 are alternately arranged in parallel with each other, wherein each The first working coil 41 includes a plurality of first working inner layer coils 411 and a plurality of first working outer layer coils 412, and the first working inner layer coils 411 are disposed in parallel with the inner and outer portions of the first working outer layer coils 412, within the first working
- the two ends of the layer coil 411 are respectively disposed adjacent to the two adjacent ones
- the adjacent first right inlaid groove 23 and the first left inlaid groove 22 in the group 2 are wound around the common root portion 111 of the first tooth portion 11, and the first working outer layer coil 412 is respectively respectively Winding
- Embodiment 3 As shown in FIG. 1 to FIG. 5, the present embodiment is an outer rotor motor including a rotating shaft 6, a molded stator 7 and an outer rotor 8.
- the outer rotor 8 is sleeved on the outside of the plastic stator 7, and the rotating shaft 6 is mounted on
- the stator 7 is molded in the middle and is coupled to the outer rotor 8.
- the molded stator 7 includes a stator core 71, an end insulation 72, a coil winding 73, and a molding body 74.
- the end insulation 72 is mounted on the end surface of the stator core 71.
- the coil winding 73 is wound around the end insulation 72.
- the molding body 74 integrally connects the stator core 71, the end insulation 72 and the coil winding 73.
- the stator core 71 is formed by several embodiments as described in the first embodiment.
- the stator punching piece 1 is laminated, and the structure of the stator punching piece will not be described here.
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- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
一种定子冲片、定子组件及外转子电机,定子冲片包括带有中心孔的冲片本体(1),冲片本体(1)包括环形轭部(10)以及从环形轭部(10)外缘上往外伸出的若干个齿,冲片本体(1)上设置有多个第一槽组(2)和多个第二槽组(3),第一槽组(2)和第二槽组(3)交替周向排列设置于冲片本体(1)外缘上,第一槽组(2)沿冲片本体(1)径向方向的深度深于第二槽组(3)沿冲片本体(1)径向方向的深度,第一槽组(2)包括位于中间的第一公用嵌线槽(21)以及分别位于第一公用嵌线槽(21)两侧的第一左嵌线槽(22)和第一右嵌线槽(23),第二槽组(3)包括位于中间的第二公用嵌线槽(31)以及分别位于第二公用嵌线槽(31)两侧的第二左嵌线槽(32)和第二右嵌线槽(33)。该定子冲片可以改善电机性能。
Description
本发明涉及一种定子冲片、定子组件及外转子电机,属于电机技术领域。
目前的电机,例如塑封外转子电机,其包括塑封定子和电机转子。其中塑封定子中包括由若干定子冲片叠压而成的定子铁芯和绕设于定子铁芯上的主线圈绕组和副线圈绕组。
现有技术中的定子冲片,其模型的常规结构是每个嵌线槽大小、形状相同并且均布在圆周外侧。这种结构虽然结构简单、便于模具制作,但绕线排线不便、绕组端部长且高,造成电机材料消耗多、成本高。而且,由于嵌线槽都位于外侧,使得齿部较窄,造成定子齿磁密较高,从而影响了电机性能和效率。
发明内容:
本发明的目的是提供一种定子冲片、定子组件及外转子电机,其可以改善电机性能。
本发明的目的是通过下述技术方案予以实现的。
定子冲片,包括带有中心孔的冲片本体,所述冲片本体包括环形轭部以及从环形轭部外缘上往外伸出的若干个齿,所述冲片本体上设置有多个第一槽组和多个第二槽组,所述第一槽组和所述第二槽组交替周向排列设置于所述冲片本体外缘上,所述第一槽组沿所述冲片本体径向方向的深度深于所述第二槽组沿所述冲片本体径向方向的深度,所述第一槽组包括位于中间的第一公用嵌线槽以及分别位于第一公用嵌线槽两侧的第一左嵌线槽和第一右嵌线槽,所述第二槽组包括位于中间的第二公用嵌线槽以及分别位于第二公用嵌线槽两侧的第二左嵌线槽和第二右嵌线槽。
上述若干个齿包括若干第一齿部、第二齿部和第三齿部,第一齿部、第二齿部和第三齿部并排在一起形成一个齿单元,多个齿单元沿周向分布,其中在
第一齿部和第二齿部之间形成所述第一左嵌线槽,在第二齿部和第三齿部之间形成所述第一公用嵌线槽,在第三齿部和第一齿部之间形成所述第一右嵌线槽。
上述第一齿部包括公用齿根部以及从公用齿根部上往外伸出的左曲齿、左直齿、右直齿和右曲齿,其中在左曲齿和左直齿之间形成所述第二左嵌线槽,在左直齿和右直齿之间形成所述第二公用嵌线槽,在右直齿和右曲齿之间形成所述第二右嵌线槽。
上述左直齿与右直齿沿公用齿根部的径向中心线对称分布,左曲齿与右曲齿也沿公用齿根部的径向中心线对称分布,第二左嵌线槽的槽口靠近于左直齿,第二公用嵌线槽的槽口位于左直齿与右直齿之间的中间位置上,第二右嵌线槽的槽口靠近于右直齿。
上述公用齿根部的宽度大于左直齿或者右直齿的宽度,并且所述公用齿根部的宽度沿所述冲片本体径向方向向外逐渐变大。
上述第二左嵌线槽与第二右嵌线槽的槽底部均是一段以冲片本体的中心为圆心所形成的圆弧。
上述所述第二齿部和第三齿部均呈直齿状,第二齿部与第三齿部沿第一公用嵌线槽的径向中心线对称分布,所述第一公用嵌线槽的槽口位于第二齿部与第三齿部之间的中间位置上。
上述第一左嵌线槽与第一右嵌线槽的槽底部均是一段以冲片本体的中心为圆心所形成的圆弧。
上述所述第一槽组和第二槽组的数量均为4个,其中第一槽组用于绕设副绕组,第二槽组用于绕设主绕组。
定子组件,所述定子组件包括定子铁芯、端部绝缘、第一工作绕组以及第二工作绕组,端部绝缘安装在定子铁芯的端面上,所述定子铁芯是由若干如上述所描述的定子冲片叠压而成,第一工作绕组绕设于第一槽组,第二工作绕组绕设于第二槽组,所述第一工作绕组包括多组沿周向间隔分布的第一工作线圈,多组第一工作线圈依次连接在一起,所述第二工作绕组包括多组沿周向间隔分
布的第二工作线圈,多组第二工作线圈依次连接在一起,第一工作线圈与第二工作线圈内外并行交错设置,其中每个第一工作线圈包括若干匝第一工作内层线圈和若干匝第一工作外层线圈,第一工作内层线圈与第一工作外层线圈内外并行设置,第一工作内层线圈两端分别绕设于相邻2个第一槽组中相邻的第一右嵌线槽和第一左嵌线槽,第一工作外层线圈两端分别绕设于所述相邻2个第一槽组中的第一公用嵌线槽,每个第二工作线圈包括若干匝第二工作内层线圈和若干匝第二工作外层线圈,第二工作内层线圈与第二工作外层线圈内外并行设置,第二工作内层线圈两端分别绕设于相邻2个第二槽组中相邻的第二右嵌线槽和第二左嵌线槽,第二工作外层线圈两端分别绕设于所述相邻2个第二槽组中的第二公用嵌线槽。
外转子电机,包括转轴、塑封定子和外转子,外转子套设于塑封定子外面,转轴安装在塑封定子中间并且与外转子连接在一起,所述塑封定子包括定子铁芯、端部绝缘、线圈绕组和塑封体,端部绝缘安装在定子铁芯的端面上,线圈绕组绕设于端部绝缘上,塑封体把定子铁芯、端部绝缘以及线圈绕组连结成一体,所述定子铁芯是由若干如上述所描述的定子冲片叠压而成的。
本发明与现有技术相比,具有如下效果:
1)所述第一槽组沿所述冲片本体径向方向的深度深于所述第二槽组沿所述冲片本体径向方向的深度,从而可以减小、避免主、副线圈绕组的交叠,便于绕线和排线,使得主、副线圈绕组的端部变短变低,减小主、副线圈绕组的用铜量,利于降低成本,所述第一槽组和所述第二槽组均设置有多个,且所述第一槽组和所述第二槽组交替周向排列设置于所述冲片本体的外缘上,所述第一槽组包括位于中间的第一公用嵌线槽以及分别位于第一公用嵌线槽两侧的第一左嵌线槽和第一右嵌线槽,所述第二槽组包括位于中间的第二公用嵌线槽以及分别位于第二公用嵌线槽两侧的第二左嵌线槽和第二右嵌线槽,通过增加第一公用嵌线槽和第二公用嵌线槽,改进冲片结构,便于绕线和排线,并且可使磁场分布均匀,使电机的效率和性能得以提升,电机的噪音变小,此外,可容
纳更多的主、副线圈绕组,改善了绕线时槽满率。
图1是实施例中定子冲片的结构示意图;
图2是实施例中定子组件的结构示意图;
图3是实施例中定子组件的局部结构示意图;
图4是实施例中外转子电机的立体图;
图5是实施例中外转子电机的结构示意图。
下面通过具体实施例并结合附图对本发明作进一步详细的描述。
实施例一:如图1所示,本实施例是一种定子冲片,包括带有中心孔的冲片本体1,所述冲片本体1包括环形轭部10以及从环形轭部10外缘上往外伸出的若干个齿,所述冲片本体1上设置有第一槽组2和第二槽组3,所述第一槽组2沿所述冲片本体1径向方向的深度深于所述第二槽组3沿所述冲片本体1径向方向的深度,所述第一槽组2和所述第二槽组3均设置有多个,且所述第一槽组2和所述第二槽组3交替周向排列设置于所述冲片本体1的外缘上,所述第一槽组2包括位于中间的第一公用嵌线槽21以及分别位于第一公用嵌线槽21两侧的第一左嵌线槽22和第一右嵌线槽23,所述第二槽组3包括位于中间的第二公用嵌线槽31以及分别位于第二公用嵌线槽31两侧的第二左嵌线槽32和第二右嵌线槽33。所述若干个齿包括若干第一齿部11、第二齿部12和第三齿部13,第一齿部11、第二齿部12和第三齿部13并排在一起形成一个齿单元,多个齿单元沿周向分布,其中在第一齿部11和第二齿部12之间形成所述第一左嵌线槽22,在第二齿部12和第三齿部13之间形成所述第一公用嵌线槽21,在第三齿部13和第一齿部11之间形成所述第一右嵌线槽23。所述第一齿部11包括公用齿根部111以及从公用齿根部111上往外伸出的左曲齿112、左直齿113、右直齿114和右曲齿115,其中在左曲齿112和左直齿113之间形成所述第二左嵌线槽32,在左直齿113和右直齿114之间形成所述第二公用嵌线槽31,在右
直齿114和右曲齿115之间形成所述第二右嵌线槽33。左直齿113与右直齿114沿公用齿根部111的径向中心线A1对称分布,左曲齿112与右曲齿115也沿公用齿根部111的径向中心线A1对称分布,第二左嵌线槽32的槽口靠近于左直齿113,第二公用嵌线槽31的槽口位于左直齿113与右直齿114之间的中间位置上,第二右嵌线槽33的槽口靠近于右直齿114。所述公用齿根部111的宽度大于左直齿113或者右直齿114的宽度,并且所述公用齿根部111的宽度沿所述冲片本体1径向方向向外逐渐变大。第二左嵌线槽32与第二右嵌线槽33的槽底部34均是一段以冲片本体1的中心O为圆心所形成的圆弧。所述第二齿部12和第三齿部13均呈直齿状,第二齿部12与第三齿部13沿第一公用嵌线槽21的径向中心线A2对称分布,所述第一公用嵌线槽21的槽口位于第二齿部12与第三齿部13之间的中间位置上。第一左嵌线槽22与第一右嵌线槽23的槽底部24均是一段以冲片本体1的中心O为圆心所形成的圆弧。所述第一槽组2和第二槽组3的数量均为4个,其中第一槽组2用于绕设副绕组,第二槽组3用于绕设主绕组。
实施例二:如图1、图2和图3所示,本实施例是一种定子组件,所述定子组件包括定子铁芯、端部绝缘、第一工作绕组4以及第二工作绕组5,端部绝缘安装在定子铁芯的端面上,所述定子铁芯是由若干如实施例一所描述的定子冲片1叠压而成,第一工作绕组4绕设于第一槽组2,第二工作绕组5绕设于第二槽组3,所述第一工作绕组4包括多组沿周向间隔分布的第一工作线圈41,多组第一工作线圈41依次连接在一起,所述第二工作绕组5包括多组沿周向间隔分布的第二工作线圈51,多组第二工作线圈51依次连接在一起,第一工作线圈41与第二工作线圈51内外并行交错设置,其中每个第一工作线圈41包括若干匝第一工作内层线圈411和若干匝第一工作外层线圈412,第一工作内层线圈411与第一工作外层线圈412内外并行设置,第一工作内层线圈411两端分别绕设于相邻2个第一槽组2中相邻的第一右嵌线槽23和第一左嵌线槽22,即绕设于所述第一齿部11的公用齿根部111上,第一工作外层线圈412两端分别绕设
于所述相邻2个第一槽组2中的第一公用嵌线槽21,且跨越1个第一左嵌线槽22和1个第一右嵌线槽23,并跨过1个第一齿部11,每个第二工作线圈51包括若干匝第二工作内层线圈511和若干匝第二工作外层线圈512,第二工作内层线圈511与第二工作外层线圈512内外并行设置,第二工作内层线圈511两端分别绕设于相邻2个第二槽组3中相邻的第二右嵌线槽33和第二左嵌线槽32,且跨越1个第一公用嵌线槽21,并跨过1个第二齿部12和1个第三齿部13,第二工作外层线圈511两端分别绕设于所述相邻2个第二槽组3中的第二公用嵌线槽31,且跨域1个第一槽组2,并跨过1个右曲齿115、1个第二齿部12、1个第三齿部13和1个左曲齿112。
实施例三:如图1至图5所示,本实施例是一种外转子电机,包括转轴6、塑封定子7和外转子8,外转子8套设于塑封定子7外面,转轴6安装在塑封定子7中间并且与外转子8连接在一起,所述塑封定子7包括定子铁芯71、端部绝缘72、线圈绕组73和塑封体74,端部绝缘72安装在定子铁芯71的端面上,线圈绕组73绕设于端部绝缘72上,塑封体74把定子铁芯71、端部绝缘72以及线圈绕组73连结成一体,所述定子铁芯71是由若干如实施例一所描述的定子冲片1叠压而成的,在此不再对定子冲片的结构进行赘述。
以上实施例为本发明的较佳实施方式,但本发明的实施方式不限于此,其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化,均为等效的置换方式,都包含在本发明的保护范围之内。
Claims (11)
- 定子冲片,包括带有中心孔的冲片本体(1),所述冲片本体(1)包括环形轭部(10)以及从环形轭部(10)外缘上往外伸出的若干个齿,其特征在于:所述冲片本体(1)上设置有多个第一槽组(2)和多个第二槽组(3),所述第一槽组(2)和所述第二槽组(3)交替周向排列设置于所述冲片本体(1)上,所述第一槽组(2)沿所述冲片本体(1)径向方向的深度深于所述第二槽组(3)沿所述冲片本体(1)径向方向的深度,所述第一槽组(2)包括位于中间的第一公用嵌线槽(21)以及分别位于第一公用嵌线槽(21)两侧的第一左嵌线槽(22)和第一右嵌线槽(23),所述第二槽组(3)包括位于中间的第二公用嵌线槽(31)以及分别位于第二公用嵌线槽(31)两侧的第二左嵌线槽(32)和第二右嵌线槽(33)。
- 根据权利要求1所述的定子冲片,其特征在于:所述若干齿包括若干第一齿部(11)、第二齿部(12)和第三齿部(13),第一齿部(11)、第二齿部(12)和第三齿部(13)并排在一起形成一个齿单元,多个齿单元沿周向分布,其中在第一齿部(11)和第二齿部(12)之间形成所述第一左嵌线槽(22),在第二齿部(12)和第三齿部(13)之间形成所述第一公用嵌线槽(21),在第三齿部(13)和第一齿部(11)之间形成所述第一右嵌线槽(23)。
- 根据权利要求2所述的定子冲片,其特征在于:所述第一齿部(11)包括公用齿根部(111)以及从公用齿根部(111)上往外伸出的左曲齿(112)、左直齿(113)、右直齿(114)和右曲齿(115),其中在左曲齿(112)和左直齿(113)之间形成所述第二左嵌线槽(32),在左直齿(113)和右直齿(114)之间形成所述第二公用嵌线槽(31),在右直齿(114)和右曲齿(115)之间形成所述第二右嵌线槽(33)。
- 根据权利要求3所述的定子冲片,其特征在于:左直齿(113)与右直齿(114)沿公用齿根部(111)的径向中心线对称分布,左曲齿(112)与右曲齿(115)也沿公用齿根部(111)的径向中心线对称分布,第二左嵌线槽(32) 的槽口靠近于左直齿(113),第二公用嵌线槽(31)的槽口位于左直齿(113)与右直齿(114)之间的中间位置上,第二右嵌线槽(33)的槽口靠近于右直齿(114)。
- 根据权利要求3或4所述的定子冲片,其特征在于:所述公用齿根部(111)的宽度大于左直齿(113)或者右直齿(114)的宽度,并且所述公用齿根部(111)的宽度沿所述冲片本体(1)径向方向向外逐渐变大。
- 根据权利要求3或4所述的定子冲片,其特征在于:第二左嵌线槽(32)与第二右嵌线槽(33)的槽底部均是一段以冲片本体(1)的中心为圆心所形成的圆弧。
- 根据权利要求2或3或4所述的定子冲片,其特征在于:所述第二齿部(12)和第三齿部(13)均呈直齿状,第二齿部(12)与第三齿部(13)沿第一公用嵌线槽(21)的径向中心线对称分布,所述第一公用嵌线槽(21)的槽口位于第二齿部(12)与第三齿部(13)之间的中间位置上。
- 根据权利要求2或3或4所述的定子冲片,其特征在于:第一左嵌线槽(22)与第一右嵌线槽(23)的槽底部均是一段以冲片本体(1)的中心为圆心所形成的圆弧。
- 根据权利要求1或2或3或4所述的定子冲片,其特征在于:所述第一槽组(2)和第二槽组(3)的数量均为4个,其中第一槽组(2)用于绕设副绕组,第二槽组(3)用于绕设主绕组。
- 定子组件,所述定子组件包括定子铁芯、端部绝缘、第一工作绕组(4)以及第二工作绕组(5),端部绝缘安装在定子铁芯的端面上,其特征在于:所述定子铁芯是由若干如权利要求1至9任一项所描述的定子冲片(1)叠压而成,第一工作绕组(4)绕设于第一槽组(2),第二工作绕组(5)绕设于第二槽组(3),所述第一工作绕组(4)包括多组沿周向间隔分布的第一工作线圈(41),多组第一工作线圈(41)依次连接在一起,所述第二工作绕组(5)包括多组沿周向间隔分布的第二工作线圈(51),多组第二工作线圈(51)依次连接在一起, 第一工作线圈(41)与第二工作线圈(51)内外并行交错设置,其中每个第一工作线圈(41)包括若干匝第一工作内层线圈(411)和若干匝第一工作外层线圈(412),第一工作内层线圈(411)与第一工作外层线圈(412)内外并行设置,第一工作内层线圈(411)两端分别绕设于相邻2个第一槽组(2)中相邻的第一右嵌线槽(23)和第一左嵌线槽(22),第一工作外层线圈(412)两端分别绕设于所述相邻2个第一槽组(2)中的第一公用嵌线槽(21),每个第二工作线圈(51)包括若干匝第二工作内层线圈(511)和若干匝第二工作外层线圈(512),第二工作内层线圈(511)与第二工作外层线圈(512)内外并行设置,第二工作内层线圈(511)两端分别绕设于相邻2个第二槽组(3)中相邻的第二右嵌线槽(33)和第二左嵌线槽(32),第二工作外层线圈(511)两端分别绕设于所述相邻2个第二槽组(3)中的第二公用嵌线槽(31)。
- 外转子电机,包括转轴(6)、塑封定子(7)和外转子(8),外转子(8)套设于塑封定子(7)外面,转轴(6)安装在塑封定子(7)中间并且与外转子(8)连接在一起,所述塑封定子(7)包括定子铁芯(71)、端部绝缘(72)、线圈绕组(73)和塑封体(74),端部绝缘(72)安装在定子铁芯(71)的端面上,线圈绕组(73)绕设于端部绝缘(72)上,塑封体(74)把定子铁芯(71)、端部绝缘(72)以及线圈绕组(73)连结成一体,其特征在于:所述定子铁芯(71)是由若干如权利要求1至9任一项所描述的定子冲片(1)叠压而成的。
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